<template>
  <div>
    <!-- 面包屑导航栏 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/welcome' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区 -->
    <el-card class="box-card">
      <!-- 搜索与添加 -->
      <el-row :gutter="15">
        <el-col :span="7">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
          <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <!-- 添加按钮 -->
        <el-col :span="4">
          <el-button type="primary" @click="dialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表 -->
      <el-table :data="userlist" border style="width: 100%" :stripe="true">
        <el-table-column
        label="序号"
        type="index"
        width="120">
        </el-table-column>
        <el-table-column
          prop="username"
          label="姓名"
          width="120">
        </el-table-column>
        <el-table-column
          prop="mobile"
          label="手机号"
          width="180">
        </el-table-column>
        <el-table-column
          prop="email"
          label="邮箱"
          width="180">
        </el-table-column>
        <el-table-column
          prop="create_time"
          label="创建时间"
          width="180">
        </el-table-column>
        <el-table-column
          prop="role_name"
          label="角色"
          width="180">
        </el-table-column>
        <el-table-column prop="mg_state" label="状态" width="110">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userChanged(scope.row)">
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="183">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-tooltip class="item" :enterable="false" effect="dark" content="修改按钮" placement="top">
              <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
            </el-tooltip>
            <!-- 删除按钮 -->
            <el-tooltip class="item" :enterable="false" effect="dark" content="删除按钮" placement="top">
              <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
            </el-tooltip>
            <!-- 分配角色 -->
            <el-tooltip class="item" :enterable="false" effect="dark" content="分配角色" placement="top">
              <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total">
      </el-pagination>
    </el-card>
    <!-- 添加弹框 -->
    <el-dialog title="添加用户" :visible.sync="dialogVisible" width="50%" @close="dialogClosed">
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
          <el-button @click="dialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
    </el-dialog>
    <!-- 修改弹框 -->
    <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
      <el-form :model="editForm" :rules="addFormRules" ref="editFormRef" label-width="100px" class="demo-ruleForm">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配角色弹框 -->
    <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleClose">
      <div>
        <p>当前的用户：{{userInfo.username}}</p>
        <p>当前的角色：{{userInfo.role_name}}</p>
        <p>
          分配新角色：
          <el-select v-model="selectedRoleId" placeholder="请选择">
          <el-option
            v-for="item in roleList"
            :key="item.id"
            :label="item.roleName"
            :value="item.id">
          </el-option>
        </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="setRoleInfo">确 定</el-button>
  </span>
    </el-dialog>

  </div>
</template>

<script>
export default {
  name: 'users',
  data () {
    /* 验证邮箱的规则 */
    var checkEmail = (rule, value, cb) => {
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        return cb()
      }
      return cb(new Error('邮箱校验不合法'))
    }
    /* 验证手机号的规则 */
    var checkmobile = (rule, value, cb) => {
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)) {
        return cb()
      }
      return cb(new Error('手机号不合法'))
    }
    return {
      /* 获取用户列表的参数对象 */
      queryInfo: {
        query: '',
        /* 当前页 */
        pagenum: 1,
        /* 每页几条数据 */
        pagesize: 2
      },
      userlist: [],
      /* 总数 */
      total: 0,
      /* 添加弹框 显示与隐藏 */
      dialogVisible: false,
      /* 修改弹框 显示与隐藏 */
      editDialogVisible: false,
      /* 添加用户 */
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      /* 添加用户验证 */
      addFormRules: {
        username: [
          { required: true, message: '用户名不能为空', trigger: 'blur' },
          { min: 2, max: 8, message: '用户名的长度为2至8位', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '密码不能为空', trigger: 'blur' },
          { min: 2, max: 8, message: '密码的长度为6至18位', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '邮箱不能为空', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '手机号不能为空', trigger: 'blur' },
          { validator: checkmobile, trigger: 'blur' }
        ]
      },
      /* 查询用户信息 */
      editForm: {},
      /* 分配角色弹框关闭事件 */
      setRoleDialogVisible: false,
      /* 当前选择的用户信息 */
      userInfo: {},
      /* 所有角色列表 */
      roleList: [],
      /* 新角色 */
      selectedRoleId: ''
    }
  },
  created () {
    this.getUserList()
  },
  methods: {
    async getUserList () {
      const { data: res } = await this.$http.get('/users', { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error('获取用户列表失败！')
      this.userlist = res.data.users
      this.total = res.data.total
    },
    /* 页码大小 */
    handleSizeChange (newPages) {
      this.queryInfo.pagesize = newPages
      this.getUserList()
    },
    /* 当前页变动时候触发的事件 */
    handleCurrentChange (newPageN) {
      this.queryInfo.pagenum = newPageN
      this.getUserList()
    },
    /* 监听switch开关状态 */
    async userChanged (status) {
      const { data: res } = await this.$http.put(`users/${status.id}/state/${status.mg_state}`)
      if (res.meta.status !== 200) {
        status.mg_state = !status.mg_state
        return this.$message.error('状态更新失败！')
      }
      return this.$message.success('状态更新成功！')
    },
    /* 监听添加用户对话框关闭事件 */
    dialogClosed () {
      this.$refs.addFormRef.resetFields()
    },
    /* 点击按钮 添加新用户 */
    addUser () {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return false
        /* 通过 则发起用户添加请求 */
        const { data: res } = await this.$http.post('/users', this.addForm)
        if (res.meta.status !== 201) {
          this.$message.error('添加失败！')
        }
        this.$message.success('添加成功！')
        /* 隐藏对话框 */
        this.dialogVisible = false
        this.getUserList()
      })
    },
    /* 监听修改用户对话框关闭事件 */
    async showEditDialog (id) {
      this.editDialogVisible = true
      const { data: res } = await this.$http.get('/users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('获取数据失败！')
      }
      this.editForm = res.data
    },
    /* 监听修改用户对话框关闭事件 */
    editDialogClosed () {
      this.$refs.editFormRef.resetFields()
    },
    /* 点击确定按钮 修改用户 */
    async editUserInfo () {
      const { data: res } = await this.$http.put('/users/' + this.editForm.id, {
        email: this.editForm.email,
        mobile: this.editForm.mobile
      })
      if (res.meta.status !== 200) {
        console.log(res)
        return this.$message.error('更新失败！')
      }
      this.editDialogVisible = false
      this.getUserList()
      return this.$message.success('更新成功！')
    },
    /* 根据id删除对应的用户信息 */
    async removeUserById (id) {
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(error => {
        return error
      })
      /* 如果用户确认删除，则返回的字符串 confirm */
      /* 如果用户点击取消，则返回的字符串 cancel */
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除！')
      }
      /* 删除 */
      const { data: res } = await this.$http.delete('/users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除失败！')
      }
      this.handleCurrentChange(1)
      return this.$message.success('删除成功！')
    },
    /* 分配角色对话框 */
    async setRole (userInfo) {
      this.userInfo = userInfo
      /* 获取所有角色数据 */
      const { data: res } = await this.$http.get('/roles')
      if (res.meta.status !== 200) {
        return this.$message.error('角色数据获取失败！')
      }
      this.roleList = res.data
      this.setRoleDialogVisible = true
    },
    /* 设置新角色 */
    async setRoleInfo () {
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectedRoleId })
      if (res.meta.status !== 200) {
        return this.$message.error('角色更改失败！')
      }
      this.getUserList()
      this.setRoleDialogVisible = false
      return this.$message.success('角色更改成功！')
    },
    /* 监听分配角色对话框关闭事件 */
    setRoleClose () {
      this.userInfo = {}
      this.selectedRoleId = ''
    }
  }
}
</script>

<style lang="less" scoped>

</style>
